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Finding the Fourth Proportional to 318,435.71, 439,441.25 and 175,192.67

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Solution

The fourth proportional to 318,435.71, 439,441.25 and 175,192.67 is: 241,765.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,435.71 : 439,441.25 = 175,192.67 : x
  2. Step 2: Convert to fraction form
    318,435.71/439,441.25 = 175,192.67/x
  3. Step 3: Cross multiply
    318,435.71x = 439,441.25 × 175,192.67
  4. Step 4: Simplify right side
    318,435.71x = 76,986,887,103.74
  5. Step 5: Solve for x
    x = 76,986,887,103.74/318,435.71
  6. Step 6: Final answer
    x = 241,765.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.